A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A garage door assembly that includes a torsion spring counterbalance apparatus mounted on a header wall above a garage door, the apparatus including at least one spring wound on a shaft, also includes a safety device. The safety device includes a capture device mounted on the header wall above the garage door, and a catch device attached to the shaft at a location proximate to the capture device on the header wall. The catch device rotates with the torsion spring counterbalance shaft, and the catch device is capable of extending away from the shaft under centrifugal force to engage the capture device and thereby stop the garage door from further free-falling.
A garage door assembly that includes a torsion spring counterbalance apparatus mounted on a header wall above a garage door, the apparatus including at least one spring wound on a shaft, also includes a safety device. The safety device includes a capture device mounted on the header wall above the garage door, and a catch device attached to the shaft at a location proximate to the capture device on the header wall. The catch device rotates with the torsion spring counterbalance shaft, and the catch device is capable of extending away from the shaft under centrifugal force to engage the capture device and thereby stop the garage door from further free-falling.
Garage door safety device
GIESE BENJAMIN C (author)
2017-07-18
Patent
Electronic Resource
English
IPC:
E05D
Scharniere oder andere Aufhängevorrichtungen für Türen, Fenster oder Flügel
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HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS, OR WINGS